Career: After a stint presenting on The Weather Channel, she trained with the Met Office in 1998 for a weather presenting role at the BBC. Away from predicating if it will rain or shine, Kirkwood has been a reporter on The One Show and appeared on the panel show Would I Lie to You? In August 2015, it was announced that she would be taking part in Strictly Come Dancing.

Career: She made her TV debut on Gardeners' World in 1989 and has since presented other gardening programmes such as Real Gardens and Open Gardens. Recent projects include Life in a Cottage Garden with Carol Klein which follows a year in the life of Carol's garden at Glebe Cottage in North Devon, and Grow Your Own Veg, which encouraged people to start growing their own vegetables. She is known for her cheerful presenting style and is hugely popular among gardeners.

Career: After making his TV breakthrough, he quickly became a popular small screen face, presenting less high-profile shows such as Real Wrecks, Home Front in the Garden and Gardeners' World Live. There was some level of opposition when he was named as presenter of Gardeners' World. He has since proved the critics wrong and become the jewel in the show's crown. He has created gardens for many famous faces and is recognised for his ethical approach.

Career: Swift is a garden designer by trade and presents horticultural programmes on the BBC, notably Gardeners' World, Chelsea Flower Show and Tatton Park Flower Show. He has written about gardening in a number of national newspapers.

Career: After seven years presenting The Really Wild Show, Chris set up his own TV company - Head Over Heels TV - where he made wildlife shows for ITV, Channel 4, Animal Planet, National Geographic and the BBC. More recently he has returned to his first love, working on and presenting TV shows, and can regularly be seen on BBC Two presenting Autumnwatch and Springwatch. He is active in many wildlife conservation bodies: he is vice-president of the RSPB, The Wildlife Trusts, and the Brent Lodge Bird & Wildlife Trust, and is a patron of Population Matters.

Career: From 1972 he was the eponymous host of a regular children's news programme, Newsround, often called John Craven's Newsround. The first such programme ever produced by British TV, it drew on the full journalistic resources of the BBC, and featured a number of news scoops, it being the first news programme of the day on TV during its early years. In 1989 he left the Newsround programme and began to present what was then the BBC's new rural affairs programme, Countryfile; although no longer its main presenter, he remains a fixture on the show.

Career: De Thame had a successful modelling career that saw her appearing in a number of TV advertisements. Her casting agents started suggesting her for acting roles and, in 1998, she appeared in the mini-series Merlin. She decided not to follow an acting career, however, and decided to get into plants and gardening instead. After studying practical horticulture and plants and plantsmanship at the English Gardening School for two years, De Thame auditioned for Gardeners' World. She initially presented the programme every week and, as of 2014, continues to make occasional appearances on the show. De Thame has also presented such TV gardening shows as Small Town Gardens, Gardening with the Experts and Countrywise. She also co-presents the BBC's annual coverage of the Chelsea Flower Show. Her non-gardening TV appearances include Going for a Song and Call My Bluff.